Катрен СтильМикромоторы помогут сперматозоидам перемещаться быстрее
Группа ученых из Института интегративных нанонаук (Institute for Integrative Nanosciences, Германия) под руководством Марианы Мединой-Санчез (Mariana Medina-Sánchez) разработала специальные микромоторы, которые помогут улучшить подвижность сперматозоидов. Спермоботы – спиралевидные металлические микромоторы, обвивающие хвост сперматозоида. Под действием магнитного поля спермобот начинает двигаться, приводя в движение и сперматозоид, который приближается к яйцеклетке. Новое устройство было успешно испытано в лаборатории, авторы надеются, что вскоре приступят и к клиническим испытаниям спермоботов. Теоретически их использование должно будет предшествовать дорогостоящей процедуре ЭКО как еще один способ увеличить успешность искусственной инсеминации.
Исследователям удалось выяснить, кто из женщин во время беременности принимал оральные контрацептивы. Оказалось, что вероятность рождения ребенка с каким-либо пороком развития у тех, кто никогда не принимал противозачаточных таблеток, была сопоставима с риском рождения такого ребенка у женщин, принимавших оральные контрацептивы на ранних сроках беременности (25,1 и 24,8 порока развития на 1000 детей соответственно).
10 февраля 2016
Выпуск: №145, январь 2016 Врач2428 просмотров
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